Bitcraze Forums

Hello, i have a question. All the "send____" functions defined in commander.py are organized in a pack according to the protocol discussed here https://wiki.bitcraze.io/doc:crazyflie:crtp:index. Am i right? I would like to know where, in the firmware is implemented the receiving part and t...

Solved. Thanks!

Hello, i've cloned the latest firmware from git hub but apparently i'm having this error while compiling: LD cf2.elf /usr/lib/gcc/arm-none-eabi/6.3.1/../../../arm-none-eabi/bin/ld: error: /usr/lib/gcc/arm-none-eabi/6.3.1/../../../arm-none-eabi/lib/crt0.o: Conflicting CPU architectures 13/1 /usr/lib/...

I've just installed eclipse on my Mac and I'm trying to "import" the firmware folder as project in order to compile and modify it within eclipse environment.
Anyone can help?
Thanks
Gianni

Hi, You should start by looking at the stabilizer loop to understand how the different parts fits together. The controller is called there: https://github.com/bitcraze/crazyflie-firmware/blob/master/src/modules/src/stabilizer.c#L185. There is currently two controller implemented, you can look at ho...

Hello, i have a doubt. I'm using my CF2.0 with the flow deck, i was playing with the logging variables and i noticed that the kalman filter works without problem and estimations are good but i have 0 measurements from the logs of the range variables (range.zrange, range.back and so on). Any ideas? I...

Hello everybody,
i know it may sounds complex, but i would like to know (at least) where to start to implement a new controller for the crazyflie in order to substitute it to the classic PID.
For example i would like to implement an LQR control. Where should i start?
Thanks

hello everybody, i have one (maybe trivial) question. In cf python codes i always see the reset kalman estimation done by these to command cf.param.set_value('kalman.resetEstimation', '1') time.sleep(0.1) cf.param.set_value('kalman.resetEstimation', '0') my question is...why one needs to switch the ...

Hello guys at bitcraze! I want to know if there is an update related to this post. https://www.bitcraze.io/2016/09/flying-many-crazyflie-with-loco-positioning-system/ Is it possible with the actual firmware (nodes and drones) to make a multiple flight just with the loco positioning system? Thanks Gi...

Hi, This can be done using the log subsystem. You can find examples on how to log variables in the Crazyflie lib examples folder: https://github.com/bitcraze/crazyflie-lib-python/tree/master/examples. You can use the python client to discover the existing log variables, on the latest master the pos...